vtkLabeledDataMapper.h

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/*=========================================================================
 
  Program:   Visualization Toolkit
  Module:    vtkLabeledDataMapper.h
 
  Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
  All rights reserved.
  See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
 
     This software is distributed WITHOUT ANY WARRANTY; without even
     the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
     PURPOSE.  See the above copyright notice for more information.
 
=========================================================================*/
#ifndef vtkLabeledDataMapper_h
#define vtkLabeledDataMapper_h
 
#include "vtkMapper2D.h"
#include "vtkRenderingLabelModule.h" // For export macro
 
#include <cassert> // For assert macro
 
class vtkDataObject;
class vtkDataSet;
class vtkTextMapper;
class vtkTextProperty;
class vtkTransform;
 
#define VTK_LABEL_IDS 0
#define VTK_LABEL_SCALARS 1
#define VTK_LABEL_VECTORS 2
#define VTK_LABEL_NORMALS 3
#define VTK_LABEL_TCOORDS 4
#define VTK_LABEL_TENSORS 5
#define VTK_LABEL_FIELD_DATA 6
 
class VTKRENDERINGLABEL_EXPORT vtkLabeledDataMapper : public vtkMapper2D
{
public:
  static vtkLabeledDataMapper* New();
 
  vtkTypeMacro(vtkLabeledDataMapper, vtkMapper2D);
  void PrintSelf(ostream& os, vtkIndent indent) override;
 
 
  vtkSetStringMacro(LabelFormat);
  vtkGetStringMacro(LabelFormat);
 
 
  vtkSetMacro(LabeledComponent, int);
  vtkGetMacro(LabeledComponent, int);
 
 
  vtkSetMacro(ComponentSeparator, char);
  vtkGetMacro(ComponentSeparator, char);
 
 
  void SetFieldDataArray(int arrayIndex);
  vtkGetMacro(FieldDataArray, int);
 
 
  void SetFieldDataName(const char* arrayName);
  vtkGetStringMacro(FieldDataName);
 
  virtual void SetInputData(vtkDataObject*);
 
  vtkDataSet* GetInput();
 
 
  vtkSetMacro(LabelMode, int);
  vtkGetMacro(LabelMode, int);
  void SetLabelModeToLabelIds() { this->SetLabelMode(VTK_LABEL_IDS); }
  void SetLabelModeToLabelScalars() { this->SetLabelMode(VTK_LABEL_SCALARS); }
  void SetLabelModeToLabelVectors() { this->SetLabelMode(VTK_LABEL_VECTORS); }
  void SetLabelModeToLabelNormals() { this->SetLabelMode(VTK_LABEL_NORMALS); }
  void SetLabelModeToLabelTCoords() { this->SetLabelMode(VTK_LABEL_TCOORDS); }
  void SetLabelModeToLabelTensors() { this->SetLabelMode(VTK_LABEL_TENSORS); }
  void SetLabelModeToLabelFieldData() { this->SetLabelMode(VTK_LABEL_FIELD_DATA); }
 
 
  virtual void SetLabelTextProperty(vtkTextProperty* p) { this->SetLabelTextProperty(p, 0); }
  virtual vtkTextProperty* GetLabelTextProperty() { return this->GetLabelTextProperty(0); }
  virtual void SetLabelTextProperty(vtkTextProperty* p, int type);
  virtual vtkTextProperty* GetLabelTextProperty(int type);
 
 
  void RenderOpaqueGeometry(vtkViewport* viewport, vtkActor2D* actor) override;
  void RenderOverlay(vtkViewport* viewport, vtkActor2D* actor) override;
 
  void ReleaseGraphicsResources(vtkWindow*) override;
 
 
  vtkGetObjectMacro(Transform, vtkTransform);
  void SetTransform(vtkTransform* t);
 
  enum Coordinates
  {
    WORLD = 0,  
    DISPLAY = 1 
  };
 
 
  vtkGetMacro(CoordinateSystem, int);
  vtkSetClampMacro(CoordinateSystem, int, WORLD, DISPLAY);
  void CoordinateSystemWorld() { this->SetCoordinateSystem(vtkLabeledDataMapper::WORLD); }
  void CoordinateSystemDisplay() { this->SetCoordinateSystem(vtkLabeledDataMapper::DISPLAY); }
 
  vtkMTimeType GetMTime() override;
 
 
  vtkGetMacro(NumberOfLabels, int);
 
 
  void GetLabelPosition(int label, double pos[3])
  {
    assert("label index range" && label >= 0 && label < this->NumberOfLabels);
    pos[0] = this->LabelPositions[3 * label];
    pos[1] = this->LabelPositions[3 * label + 1];
    pos[2] = this->LabelPositions[3 * label + 2];
  }
 
  const char* GetLabelText(int label);
 
protected:
  vtkLabeledDataMapper();
  ~vtkLabeledDataMapper() override;
 
  vtkDataSet* Input;
 
  char* LabelFormat;
  int LabelMode;
  int LabeledComponent;
  int FieldDataArray;
  char* FieldDataName;
  int CoordinateSystem;
 
  char ComponentSeparator;
 
  vtkTimeStamp BuildTime;
 
  int NumberOfLabels;
  int NumberOfLabelsAllocated;
  vtkTextMapper** TextMappers;
  double* LabelPositions;
  vtkTransform* Transform;
 
  int FillInputPortInformation(int, vtkInformation*) override;
 
  void AllocateLabels(int numLabels);
  void BuildLabels();
  void BuildLabelsInternal(vtkDataSet*);
 
  class Internals;
  Internals* Implementation;
 
private:
  vtkLabeledDataMapper(const vtkLabeledDataMapper&) = delete;
  void operator=(const vtkLabeledDataMapper&) = delete;
};
 
#endif